The costume is a special protective clothing and use on the ground, gassed and chemically hazardous materials emergency: it is intended to protect the skin, clothing and footwear from a long-acting poisonous and toxic substances, toxic dust, for protection from acids, water, alkalis, sea salt, coatings, paints, oils, fats, and petroleum products, protection from harmful biological agents in the performance decontamination, decontamination and disinfection works. Suit A-1 is made of rubberized fabric or T-15 UNKL-3. Costume consists of A-1 jacket with hood, pants with stockings and two pairs of protective gloves. On the jacket sleeves are cuff securely around the wrist like a glove, and without them. According to Smart Sites, who has experience with these questions. A-1 is produced three growths. Selection of costumes for the growth is carried out: one size – for the people rise up to 165 cm, the second – from 166 to 172 cm, a third – 173 cm and above. Suit A-1 is remedy periodic wear. Upon infection, RH, RP, BA costume is subjected to special treatment and are used repeatedly. To extend the work in the costume of the L-1, defined by physical activity and weather conditions, need to: * keep suit L-1 in the shadows, avoiding pre-heating * directly put on before work * at elevated temperature using cooling screens periodically wetted with water; * work without unnecessary movements * put at 150 C and above in underwear, from 0 to 10C over OKZK (OKZK-M OKZK-D), from 0 to minus 100C – on top of winter clothing, at a temperature below minus 100C – on top of jacket, wearing the clothing. When removing the suit L-1 should pay special attention to the fact that the open parts of the body do not touch it outside (contaminated) side.